Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mao van cau snippets" » "dao van cau snippets", "cao van cau snippets", "hao van cau snippets", "mao van dau snippets", "mao van hau snippets", "mao van chat snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mao van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mao van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mao van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mao van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.